William H. Lang
Articles written in Journal of Genetics
Volume 13 Issue 2 August 1923 pp 167-175
A normal looking plant of
The progeny when the spores were sown together showed segregation of the entire-leaved and incised-leaved characters. There were about 75% of the former and 25% of the latter type.
The incised-leaved plants bred true, behaving like extracted recessives.
The two entire-leaved plants of the
Pure dominant plants have not so far been proved to be present in the
Isolated single prothalli produce either entire-leaved or incisedleaved plants, not both. Assuming that segregation occurred at spore formation, plants thus obtained should be genetically pure. This is the most direct method of obtaining all possible pure combinations in a homosporous fern. It also applies to the genetic study of the Bryophyta.
The original plant showed somatic segregation of the entireleaved and incised-leaved characters in the two halves of one leaf.
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